Which of these licensees is correctly following MREC guidelines for hosting an open house?

The choice that correctly reflects adherence to MREC guidelines for hosting an open house is the action taken by Shawna. Displaying the MREC notice that informs consumers of her representation of the seller is a crucial part of the ethical standards established by the Maryland Real Estate Commission. This notice serves to ensure transparency in the relationship between the agent and their client, allowing potential buyers and visitors to understand who the agent represents in the transaction.

Providing this disclosure is important because it helps manage expectations and mitigates any potential misunderstandings about the agent's loyalty and responsibilities. Clear communication about representation fosters trust and maintains ethical standards within the real estate practice, which aligns with the objectives of the MREC.

While the other actions taken by Fabrizio, Shelby, and Luke may seem well-intentioned and reflect good practices in a general sense, they do not specifically address the essential regulatory requirement of representation disclosure. Therefore, Shawna's action not only complies with MREC regulations but also emphasizes the importance of clear communication and ethical practice in real estate transactions.